Ọrụ anyị
Ụlọ ọrụ anyị nwere ike ịnye ngwọta zuru oke maka iwu nkume na-enweghị mgbawa.
Ụlọ ọrụ anyị pụrụ iche na R & D, mmepụta, mmepụta na ire nke excavator Mgbakwụnye.Ngwaahịa ndị bụ isi bụ ogwe aka diamond, ogwe aka ọwara na ogwe aka hama.A na-eji ngwaahịa ndị a na-ewu okporo ụzọ, ihe owuwu ụlọ, ihe owuwu ụgbọ okporo ígwè, Ngwuputa ihe, ikpochapu permafrost, wdg. na-enweghị mgbawa nkume ewu ewu.